This thing works great just install add email get your key and you are done, the bruteforce attacks are coming in hard now since the botnet is growing by taking over larger more powerful servers and pcs.
21 stopped so far for me in 3 days I just moved hosting and had extra security scripts on old host.
This may be another option you want to implement no need for a plugin just ask your host to but a script up in your file directory for a popup captcha on wp-login.php
Also search thread of Hardening WordPress
Thanks for this plugin! Anyone not running this for extra protection is asking for a hack.
Highly encrypted passwords on every account you have email, wordpress etc is recommended, need to generate one just go to cpanel generate it from the mysql tab copy it save it then cancel the box quick method I always have used.